Peter Attia· MD
and those electrons then flow through a series of proteins that sit in the inner mitochondrial membrane the mitochondria have two membranes the outer one is kind of leaky and kind of not so important the inner one is super tight and has a ton of regulation in it and most importantly can be used to pump protons to one side or the other and ultimately it's the pumping of protons out of the mitochondria that's the function of the electron transport chain and in this kind of metabolic flux way that we talked about earlier the protons that get pumped out just flow right back in but as they flow back in they turn a turnstile and as that turns dial turns it squeezes adp and inorganic phosphate physically